Her velocity is 10 km/hr.
Given data:
The distance of the path is d=25 km.
The time taken by Jessica is t=2.5 hrs.
The velocity of Jessical can be calculated as,
[tex]\begin{gathered} v=\frac{d}{t} \\ v=\frac{25km}{2.5\text{ hr}} \\ v=\frac{10km}{hr} \end{gathered}[/tex]Thus, the velocity of Jessica is 10 km/hr.